System Invaders
Games like System Invaders

Games like System Invaders

A casual retro shoot 'em up about blasting virus waves in co-op, with short arcade sessions per reviewers.

CPU Invaders - 3i Atlas
A compact, intense arcade shmup about invaders inside your computer, with desktop multitasking and tight, punishing gameplay.
2025-12-22
- Shooter
- Action

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Games like System Invaders | IndieDex

System Invaders
Games like System Invaders

Games like System Invaders

A casual retro shoot 'em up about blasting virus waves in co-op, with short arcade sessions per reviewers.

CPU Invaders - 3i Atlas
A compact, intense arcade shmup about invaders inside your computer, with desktop multitasking and tight, punishing gameplay.
2025-12-22
- Shooter
- Action

Side view

Astral Gunners

A fast-paced horizontal shmup with five unique gunners and bullet-altering powers, offering solo or local co-op in short intense burst sessions.

2024-06-21

Action
Indie
Side view
Arcade

The Bug Butcher

A fast-paced arcade shooter inspired by Super Pang, featuring vertical combat, a wide range of weapons and powerups, and single-player or local co-op, with a roughly nine-hour campaign.

2016-01-19

Shooter
Action
Science fiction
Indie
Side view
Arcade

OBLITACRATER

An arcade shoot 'em up with endless alien waves and score-resetting death, playable solo or in local co-op, with reviewers noting rough edges and short ~37-minute sessions.

2026-04-24

Action
Indie
Arcade

Vortex Attack: ボルテックスアタック

A frenetic fixed-screen arcade shooter with local multiplayer and worldwide tournaments, offering an old-school high-score chase that reviewers played for roughly 3.5 hours.

2015-05-27

Action
Science fiction
Indie

Void Invaders

A colorful, chaotic arcade shoot-em-up in the Galaga/Space Invaders mold, with short ~1-hour single-player sessions.

2015-08-14

Shooter
Action
Bird view / Isometric
Indie
Arcade

CPU Invaders - Movie Attack

A short, casual single-player top-down shooter set in movie-inspired digital worlds, where players fight an alien virus across a quick arcade campaign.

2026-02-03

Shooter
Action
Arcade

Space Elite Force

A casual-friendly space shooter featuring ship combat, weapon customization, and boss battles, playable solo or in co-op, with positive reviews and short play sessions.

2018-05-17

Shooter
Action
Adventure
Strategy
Indie

Galactic Retribution Vol.1

A short, lighthearted retro arcade shooter where you defend the solar system in wave-based single-ship combat.

2026-06-25

Cosmic Swarm

An addictive Early Access space shooter where you defend galactic borders from alien swarms in a short, simple campaign that reviewers generally finish in about an hour.

2025-10-18

Action
Indie

Newtonia

A casual retro 2D top-down space-shooter with single-player, online/split-screen co-op and PvP, described by reviewers as fun and well-optimized.

2026-04-09

Interstellar Invaders

A casual arcade blend of brick breaker, shoot-'em-up, and missile-command mechanics with procedural levels and local co-op.

2018-04-30

Action
Indie

CPU Invaders - 3i Atlas